Maxon Cinema 4D SKP File Parser stack-based overflow

Summaryinfo

A vulnerability labeled as critical has been found in Maxon Cinema 4D. This affects an unknown function of the component SKP File Parser. Executing a manipulation can lead to stack-based overflow. This vulnerability is tracked as CVE-2023-40486. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability has been found in Maxon Cinema 4D (the affected version unknown) and classified as critical. This vulnerability affects an unknown part of the component SKP File Parser. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Maxon Cinema 4D SKP File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Maxon Cinema 4D. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of SKP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21434.

The weakness was disclosed 08/25/2023 as ZDI-23-1186. The advisory is available at zerodayinitiative.com. This vulnerability was named CVE-2023-40486 since 08/14/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/28/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Vendor

• Maxon

Name

• Cinema 4D

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